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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Symbol.prototype.description</title>
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<body>

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<script>
    // https://www.cnblogs.com/zygll/p/14262826.html

    let st = Symbol("mortal");
    console.log(st.description);

</script>

</html>